[coreboot-gerrit] Change in coreboot[master]: soc/intel/common/gspi: Check device validity before setting state

[Karthik Ramasubramanian (Code Review)]

Karthik Ramasubramanian has uploaded this change for review. ( https://review.coreboot.org/c/coreboot/+/34761 )

Change subject: soc/intel/common/gspi: Check device validity before setting state
......................................................................

soc/intel/common/gspi: Check device validity before setting state

Not all GSPI devices are enabled in all SoCs. Ensure that the GSPI
device is valid before setting controller state to active.

BUG=None
TEST=Boot to ChromeOS.

Change-Id: I792ab1fa6529f5317218896ad05321f8f17cedcd
Signed-off-by: Karthikeyan Ramasubramanian 
---
M src/soc/intel/common/block/gspi/gspi.c
1 file changed, 2 insertions(+), 1 deletion(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/61/34761/1

diff --git a/src/soc/intel/common/block/gspi/gspi.c b/src/soc/intel/common/block/gspi/gspi.c
index beb12fb..4a5b3b9 100644
--- a/src/soc/intel/common/block/gspi/gspi.c
+++ b/src/soc/intel/common/block/gspi/gspi.c
@@ -479,7 +479,8 @@
    }

/* Ensure controller is in D0 state */
-	lpss_set_power_state(device, STATE_D0);
+	if (device)
+		lpss_set_power_state(device, STATE_D0);

/* Take controller out of reset, keeping DMA in reset. */
    gspi_write_mmio_reg(p, RESETS, CTRLR_ACTIVE | DMA_RESET);